Tracy had taken tennis lessons when she was very young and was a good tennis player while she was in school. However, she had not played tennis for years when she decided to enroll in a tennis class at college. At the tennis class, a moment after she picked up her racket, Tracy realized that she had shifted it to the correct forehand grip without even thinking. Tracy's made this possible. Select one: a. implicit memory b. semantic memory c. psychomotor memory d. episodic memory

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait. 

Tell the option first